David Widzinski, the 16-year-old Novi Catholic Central High School student whose mother found him dead in his bed on Dec. 3, died of natural causes.

His death devastated Novi's Catholic Central High School, where Widzinski was a standout sophomore linebacker on the school's football team last year.

The cause of death of the teen's autopsy had been undetermined pending the results of a toxicology test to see if there were any foreign substances in Widzinski's body that could have led to his death.

The results arrived Wednesday.

"The cause of death will go down as 'heart arrhythmia of unknown
etiology,'" said Sarah Bazzi, a spokeswoman for the Wayne County Medical
Examiner's Office."He died of natural causes."

"Nothing showed up" in his toxicology results.

A
scholarship fund in Widzinski's name has been established to
"memorialize him for ages to come," said Dan Collins, the director of
advancement for Catholic Central, following the student's death.